Senior Front End Developer

October 25, 2026

Senior

London, England, United Kingdom

Description

IBM Consulting UK FutureNow is hiring a Senior Front-End Developer to deliver digital solutions for public sector and defence clients. The role covers building modern, secure and highly performant user interfaces on modern JavaScript frameworks, and translating complex requirements into intuitive digital experiences. Depending on seniority, the developer leads front-end delivery, shapes architecture and engineering standards, and mentors other engineers. Work is subject to UK security screening and clearance eligibility.

Responsibilities

Develop high-quality, responsive and accessible front-end applications using modern JavaScript frameworks
Translate UI/UX designs into polished, user-centric interfaces aligned with accessibility and government digital standards
Collaborate closely with designers, backend engineers, QA and DevOps to deliver integrated end-to-end solutions
Build reusable components and shared UI patterns, keeping codebases clean, modular and scalable
Perform testing, debugging and front-end performance optimisation for reliable and fast user experiences
Contribute front-end expertise during requirements analysis, solution design and technical planning
Support CI/CD workflows and Git-based version control practices
Stay up to date with emerging front-end technologies, tooling and engineering approaches and apply them
Lead front-end development on complex or highly secure projects, defining architecture, patterns and standards
Shape development workflows, testing strategies and release processes
Mentor and support junior and mid-level developers in technical and delivery capabilities
Communicate technical decisions, trade-offs and solution direction to clients and stakeholders
Influence technical strategy and contribute to planning across account-level delivery

Requirements

Advanced proficiency in JavaScript, HTML5 and CSS3 for building interactive, performant and maintainable applications
Hands-on experience with modern frameworks such as React, Vue.js or Next.js, including component-driven architecture and state management
Strong understanding of responsive design, WCAG accessibility standards and user-centric usability best practices
Experience with component libraries and design systems, collaborating closely with UI/UX teams
Strong debugging, testing and performance optimisation capabilities across modern browsers and devices
Proficiency in Git and Git-based workflows, including branching strategies and collaborative code review
Solid understanding of API integration, RESTful services and data-driven UI patterns
Knowledge of front-end testing approaches: unit, integration and end-to-end testing
Familiarity with CI/CD pipelines, automated build processes and DevOps workflows for front-end delivery
Excellent communication skills and a strong analytical mindset for troubleshooting complex issues
Bachelor's Degree as preferred education for the role
Exposure to AWS or Azure cloud-native delivery and server-side Node.js or Next.js as an advantage

Conditions

Full-time role with flexible working approaches and sabbatical programmes for work-life balance
25 days holiday in addition to public holidays
Private medical, dental and optical cover plus life assurance
Group pension plan through salary sacrifice
Paid paternity leave, maternity leave and a maternity returners scheme
Employee Assistance Program and online shopping discounts
Work on public sector and defence accounts from the London, England location